Pipe-wrench.



D. S.\SEBASTIAN.

PIPE WRENCH.

APPLlcMloH 11L12D 11011.12, 1912.

1,059,224; Patented Apr. 15, 1913.

v n manners l Said jaw also' has a series of teeth 12, asy

DANIEL s. SEBASTIAN, or WALLACE, IDAHO.

rma-WRENCH.

Specification of Letters Fatent.

Patented Apr. 15, 1913.

application mea Ncvember i2, una. semi No. 730,352.

To all whom t may concern.'

Be it known that I, DANIEL S. SEBASTIAN, a citizen of the United States, and a resident of Wallace, in the 'county of Shoshone and State of Idaho, have invented a new and Improved Pipe-Wrench, of which the following is a full, clear, and exact description.

This invention relates towrenches and particularly that typelof wrenches used byplumbers or others for handling pipes or rods. n Y

The primary object of the invention 1s to -improve the type of wrenches above indicated with respect to quickness of adjustment, reliability of securing such adjustment, and the increase of the gripplng effect of the jaws.

The foregoing and other objects of the 1nvention will hereinafter be more fully de scribed and claimed and illustrated in the drawings accompanying this specification 1n which like characters of reference indicate corresponding parts in all the views, and 1n which- Figure 1 is a side view of a' preferred form of the invention, the parts being shown as held in one position; Fig. 2 is a partial side view of the same wrench in the same position of adjustment, certain parts being in-section and the inner jaw being shown in the position in or toward which it will be operated when in use; F-ig. 3 is a transverse sectional detail substantially on the llne 3--3 of Fig. 2; and Fig. 4 is a similar detail substantially on the line 4--4 of Fig. 1.

Referring more particularly to the accompanying drawings, a. preferred form of this wrench includes an outer jaw 10 to which is connected :rigidly a shank 11 having a common formy of flattened `orsegmental screw.

usual.

At 13 is shown a shell or casing which surrounds the shank 11 and is provided with a longitudinally disposed partition 14; substantially parallel to the 'rear edge 15 of the casing. Said partition, in connection with the front 16, constitutes `a compartment 17 which is preferably flaring toward the inner end; that is to say, the partition 14 andwall 16 diverge inwardly. Said casing at its rear intermediate portion is slotted transversely at 18 for the accommodation of a nut 19 threaded to coperate with the threaded shank 11. Said nut is preferably for the purpose of quick adjustment of the' wrench. When the adjustment `is determined approximately, the nut will be turned through 90 degrees, turning the threaded portlons 19 of the nut 'into coo eration with the threads 11', whereby the s ank willY be maintained in proper adjusted position with respect to the casing 13. Any suitable means may be provided auxiliary to the casing to secure the nut from rotation when servin to maintain the proper position just described. For this purpose I show a keeper' 2O slidable along the outside of the casing and into one end of the slot 19 of the nut. -lfVhen in this position the keeper will prevent rotation of the nut and hence the loss of proper adjustment of the wrench. Thed keeper may be moved into or out of said slot by means of a finger piece 21 and held in either locking or unlocking position by any suitable `means such, for instance, as a spring 22 which normally coperates with the keeper 20 frictionally, but which will not only permit the desired movements of the keeper, but also will permit, upon springing the upper 4end of the spring away from the casing, the keeper to be removed or replaced, if necessary.

The inner jaw 23 is of'peculiar construction and is provided on one or both sides with cams 24 which embrace the sides of the shank 11 and are adapted to bear against the outer end of the casing at points transversely between the threaded portions of the shank. To said jaw 23 is also rigidly connected a lever or handle 25 which is preferabl tapered and which extends i'n .wardly t rough the compartment 17, the

vsiderable extent within the space between the walls 14 and 16 of the casing, and in so doing the jaw 23 will roll or bear with its cams upon the outer end of the casing. The first effect, therefore, of the power applied to theilever in the usual manner vwill be to tend to swing the jaw 23 around the points of the cams 24, the lever approaching, in this movement, the wall 16. The r result of `this construction and movement is for the partin from the spirit of the invention claime Having thus described my invention,

what I claim as new and' desire to secure by Letters Patent is:

In a pipe wrench, the combination of a pairl of jaws adjustable relatively toward `each other, one 'of said jaws having an integral shank and the other of sald jaws having a handle, saidshank and handle extending inwardly substantially parallel to each other, a casing embracing said shank and handle, a nut cooperating with the casing and said shank for adjustlng the wrench and maintaining such adjustment, and a keeper slidable longitudinally along the outside of the casing and coperating with the nut to prevent unauthorized rotation thereof, said keeper including a finger piece and a flat spring embracing and removably securing the keeper in place, substantially as set forth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

DANIEL S. SEBASTIAN.

,Witnessesz CHAS. H. S'rRoPE, JAMES W. MCGINNIS. 

